Wuji (无极) is a cross-platform media aggregation application built with Tauri v2 (Rust backend) and Vue 3 (frontend). It allows users to browse, search, and consume content across multiple media types—books, comics, videos, music, and photos—from user-defined 'subscribe sources' that are implemented as JavaScript extensions. The application includes a built-in Monaco code editor for creating and editing these extensions, a cloud synchronization engine with CRDT-like conflict resolution (LWW clocks, tombstones, pending queues), a download manager with M3U8 support and AES decryption, DLNA casting, text-to-speech via Edge TTS, and a membership system with VIP/PRO tiers. It targets both desktop (Windows) and mobile (Android) platforms through Tauri's plugin architecture, with platform-specific implementations in Rust and Kotlin. The architecture is monolithic but modular, with clear separation into packages (sync, source-extension, fetch, components, hot-api) and custom Tauri plugins (commands, mediasession, cast, mywebview). The sync library is particularly well-crafted, offering a reusable offline-first synchronization pattern. The codebase is actively maintained with recent commits, though testing coverage is limited to the sync package and a few utility modules.